Embark on a nighttime adventure into the waters of Laguna Grande and see millions of glowing plankton. Paddle on this guided evening tour. Make your way through mesmerizing mangrove channels and learn about the wonders of bioluminescence. After getting picked up from your San Juan accommodation we will head to the town of Fajardo. After check-in, you will receive a quick overview and safety briefing from your guide before setting out. Then, paddle in a two-person kayak through the mangrove channels leading to the natural reserve of the Laguna Grande. Then, see the microscopic plankton capable of producing natural light at the touch of your hand. Explore these amazing organisms up close as your professional guide takes you on a journey to discover all their secrets. Finally, learn how this fragile and unique ecosystem maintains a perfect balance of life, and what you can do to protect such a special place. Paddle in this safe and closed environment, and watch as the water comes alive with millions of glowing plankton (like fireflies).

Join your expert tour guide for an all-day excursion to the El Yunque Rainforest, then kayak with glowing planktons at a bio-luminescent bay. Start your adventure with a visit to the lesser-known zone of El Yunque, the only tropical rainforest in the United States. Hike and explore this off-the-beaten-track habitat. Take a dip in a waterfall or natural pool, or try out the waterslides. Hear fascinating stories from your guide about natural and local history. Spot native flora and fauna, many of which are not found anywhere else on the planet. After the hike, take a break with some lunch at a local restaurant. Then it's time for a kayak adventure through mangrove channels leading to the Laguna Grande. Meet the glowing microscopic planktons capable of producing natural light at the touch of your hand. Paddle in this remarkable yet safe environment. Explore these amazing creatures up close. Watch how every stroke of your paddle leaves behind a glowing swirl of blue light that resembles fireflies. Learn how this fragile and unique ecosystem maintains a perfect balance of life. Please read the entire Know Before You Go section to make sure you meet our Safety Requirements and Limitations in order to participate.

Don’t let your day end when the sun goes down. Enjoy a relaxing kayak tour at sunset that leads to the fascinating Laguna Grande in the town of Fajardo located on the Northeast corner of the island. Under a blanket of the night sky and the historical lighthouse, you can touch the waters that glow with bioluminescent organisms. The activity starts at sunset in the small fishing village of Las Croabas where you meet the friendly guides. Check-in and get equipped with all the gear, including botanical-based insect repellent. Get the Kayak 101 Safety training, then board your kayak. Paddle across a small fisherman’s harbor to the entrance of Las Cabezas de San Juan Reserve. Here, you enter a mystical channel that leads to a peaceful place where the mangroves create natural tunnels and the sights and sounds of wildlife surround you. After a 25- to 30-minute paddle through the channel, based on traffic and tidal currents, your guide stops once in the lagoon to give commentary on the following points of interest: • Mangrove forest and the different species • Birdlife that inhabits the area • Aquatic marine life that uses the lagoon as an estuary • Information on the bioluminescence organism • History of the lighthouse • Insight on seven of eight ecosystems found in the area Afterward, enter the lagoon called Laguna Grande (large Lagoon), where you paddle along the edge of the mangrove forest and watch the stroke of each paddle light up a bioluminescent blue-green/white-green. Encounter fish that look like shooting stars as they swim through the thick concentration of Pyrodinium Bahamense, a species of Dinoflagellate. At the breakpoint, admire beautiful views of the rainforest and the lighthouse of Fajardo, accompanied by good conversation. Next, begin the route to Bird Island to view the many birds that roost there overnight. Once quietly rounding the small island, start the return to the departure site. This tour is offered under the full moon cycle, so checking what the moon phase is recommended.

Join a day trip from San Juan to El Yunque Rainforest and the bay of Laguna Grande, two of Puerto Rico's natural gems. Follow your guide through nature trails, kayak in Fajardo Bio Bay, and observe bioluminescence at night. Enjoy return transfers, snacks, and all entrance fees. Following a morning pickup, embark in direction of your bio bay and rainforest adventure. Enjoy the beautiful views along the scenic route through the north side of the island and learn some facts about the areas from your guide. Make a stop in the town of Luquillo and enjoy some fresh local fruits before continuing the journey to Puerto Rico's majestic rainforest. El Yunque is the only tropical rainforest and the most studied forest in the United States National Forest System. Admire its biological diversity with its plants and animals, some of which are found only in Puerto Rico. Hike through trails lined with flora and fauna. Arrive at a hidden gem located in the heart of the rainforest. Enjoy the breathtaking segment of the 29,000-acre forest and swim in natural pools and waterfalls, slide down a waterslide, rope swing into the river, jump from different rock formations, and enjoy fresh local fruit with a view. After working up an appetite with an exciting first half of the day, make a stop for dinner at a local restaurant and savor Puerto Rican cuisine (cost not included). Relax until it’s time for the second part of your combo tour – the Bioluminescent Lagoon, one of planet earth's best-kept secrets. Begin your Fajardo Bio Bay kayak tour at Las Croabas. After receiving a safety briefing on kayaking, head toward the Red Mangrove Forest with an amazing view of the sunset. Enjoy kayaking for approximately 30 minutes, and admire the forest's beautiful protected flora and fauna. Upon arrival in Laguna Grande, let the magic unfold. Tiny organisms called dinoflagellates make the water glow at night. Watch how sparkles appear in the water at every stroke of your paddle, follow the swirl of lights created by the kayaks, and admire the glowing fish. SATURDAY TOUR DETAILS: Saturday’s tour is longer (approximately 1 additional hour) and more strenuous than Monday – Friday. It’s very important that you are able to comply with all of the tour restrictions, have a strong physical fitness level and are able to bring your knees up to your chest.

Enjoy a night kayaking tour in the Bio Bay of Laguna Grande Reserve in Fajardo. An adaptive paddling program provides ample opportunity for creativity and many unique opportunities for anyone who would like to try kayaking for the first time.  The Bio Bay has microscopic organisms called dinoflagellates that produce a glowing effect when they are stirred by your paddles. Paddle your way through the mangrove forest for 2 hours, in the bioluminescent glow of the water.